WWJP81 RJTD 150600 VITAL WARNING FOR NAHA NAVTEX AREA 150600UTC ISSUED AT 150900UTC DEVELOPING LOW 990HPA AT 39N 138E MOV NE 25 KT STNR FRONT FM 19N 127E TO 20N 132E 22N 139E 25N 145E 30N 152E 31N 157E GALE WARNING SOUTHERN SEA OFF SHIKOKU WITH MAX WINDS 40 KT NORTHERN SEA OFF SHIKOKU WITH 35 KT WARNING(NEAR GALE) SEA OFF KAGOSHIMA, SEA AROUND AMAMI WARNING(DENSE FOG) SEA WEST OF NAGASAKI, SEA SOUTHWEST OF MESHIMA, SOUTHERN PART OF EAST CHINA SEA POOR VIS 0.3 MILES OR LESS IN PLACES NXT WARNING WILL BE ISSUED BEFORE 151500UTC =